摘要
对木梁进行张弦是解决大跨度木梁挠度过大的一个有效方法。本文进行了预应力损失观测试验,定量分析木材蠕变对预应力损失的影响,并给出试验期间预应力损失后张弦木梁挠度计算公式。
It is an effective method to reduce the large deflection of long-span timber beam by tensioning steel string in the timber beam. Experiment on prestressing lose of timber beam string structure（TBSS） was carried out. Influence of creep of timber on prestressing lose were quantitatively analyzed, and calculation formula of deflection of TBSS after prestressing lose during experiment was given.
出处
《低温建筑技术》
2007年第1期73-75,共3页
Low Temperature Architecture Technology
关键词
张弦木梁
蠕变
预应力损失
挠度
timber beam string structure
creep
prestressing loss
deflection
